Fastening clip



FIG. 1 is a perspective view showing the new design for a fastening clip of the present application;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a side view thereof; and,

FIG. 5 is a top view thereof. 

CLAIM The ornamental design for a fastening clip, as shown and described. 